#define  _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;

class Date
{
public:
	Date(int year = 1, int month = 1, int day = 1)
	{
		this->_year = year;
		this->_month = month;
		this->_day = day;
	}

	Date(const Date& d)
	{

	}
private:
	int _year;
	int _month;
	int _day;
};

int main()
{

	return 0;
}